Carburetor



March 11, 1924. 11,486,495

a l A. E. ROBERTS CARBURETOR Filed July 28, 1919 5 Sheets-Sheet l H5 mi: e 5

IN VEN TOR March 11 1924.'

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A. E. ROBERTS CARBURETOR File'd July 5 Sheets-Sheet 5 INVENTOR ALFRED E. IKOBEKTS TRNEY March 11 A 3,486,495 A. E. ROBERTS ARBUREToR 1919 5 Sheetsfsheet 4 Filed JLly 28 INVENTOR 5 5 9 .E Am, .m w q e e .n S 5 9 m m 9 www 8 Bmwl/ OHV. Rmm .MJ ECd e Anm F March l1, l924 INVENTOR ALFRED E ROE/TS.

A TT NE Y idatented li/ilar. il., i924.

hddtit ALFRED E. ROBERTS, 9F SAN FRANCISCO, CALEFORNI..

CARB'URETOR.

Application filed July 28, 1919. Serial No. 313,810.

To all whom t may concer/n:

Be it known that l, ALFRED E. Renners, citizen of the United States, residing at San Francisco, in the county of San Francisco, State of California, have invented a new and useful Carburetor, of which the iollowing-is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This machine is for the purpose of producing a mixture or" iuei and air for heating or lighting purposes where the usual coal or oil gas is not available.

The main objects of my invention are to provide a machine which will at all times produce a Jfuel mixture ot the proper richness and with means for so controlling the temperature of the incoming air and evaporating liquid r'uel that danger of 'freezing is eliminated. A further purpose of my invention is to automatically control the prof duction of fuel mixture and limit it to a quantity sufficient only for immediate use.

Other objects of the invention will appear as the description proceeds.

An embodiment of the invention is shown in theV accompanying drawings in which the same reference numeral is applied to the same portion throughout, but l am aware that there may be modifications thereof.

Fig. 1 is a side elevation of the complete machine with portions thereof broken away for purposes of illustration,

Fig. v2 is a. plan View of the complete machine,

Figure 3 is an end elevation oli' the machine, broken away to disclose certain features of the interior construction;

Fig. 4 is an end View of the working parts or" the machine on top of the evaporator pans looking in the opposite direction from Fig. 3,

F ig. 5 is a longitudinal sectional view of the gasolene measuring valve,

Fig. 6 is a transverse sectional view of the gasolene measuring valve,

Fig. 7 is a diagrammatic view illustrating the wiring for the operation of the motor for driving the machine, the tilting switches being shown inY their1 normally open position,

Fig. 8 is a plan view of the inlet pipes to the gasometers,

Fig. 9 is a plan view or the outlet pipes from the gasometers, and

Figure 10 is a vertical sectional View through the inlet and outlet valves of one of the gas holders.

T he apparatus comprises a suitable longitudinal tank 1 installed upon a suitable base 2, and having two water compartments 3, 3 at one end for the gas holders. The rectangular tank 1 is closed at the top but not air tight and normally is filled with water in which are submerged a series of at tubes 4, 4, in two series inclined from one end of the receptacle 1 toward the other end thereof, and back again, oppositely inclined, being connected at their ends by vertical portions 5.

ln the present instance, there are eleven of the tubes 4, 4 oppositely inclined from top to bottom. rlhese tubes have inlet pipes 6, 6 connected therewith and have the two outlet pipes 7, '.7 connected with the lower trays. The pipe 7, 7 connect with the pipes 8, 8', which latter is connected to a single pipe 9 leading to the pipes 10, 10 and in turn con nected with the pipes 11 and 11 leading into the gas holders. See Fig. 8. The pipes (i, 6 are connected to two pipes 12, 12 which are in turn connected to a single valve 13 which receives its air from the receptacle 14 within which are suitable trays 15 carrying calcium chloride to remove the water from the air drawn into the machine.

Mounted upon the top ot the receptacle 1 are two plates 16 and 17 which 'form the support for the brackets 18 to 21 inclusive. These brackets support the gasolene tank 22. This gasolene tank has a switch block 23 mounted thereon carrying a knife switch 24. A lever 26 extends into the gasolene tank, and carries la float 25 and said float lever has a slotted link 2T pivotally connected therewithat one end. rlhe slotted link serves to disconnect the switch 24 when the supply of gasolene runs low so as to prevent the machine from operating and drawing in air without the proper quantity ot gasolene.

The plates 16 and 17 are connected together by means of two cross plates 29 and 30, which support a casing 31 containing the gasolene measuring valve 32. The gasolene measuring valve 32 has two depressions as indicated at 33, 34, as in Fig. 6 and it resales the water around the evaporation trays and to prevent them from freezing up, there is the circulation pump 140. rlhis pump is operated by the belt 141 from a pulley142 on the shaft 131, and said pump takes its water through the pipe 143, and discharges it through the pipes 144 leading to the pipes 145, 146, and linally discharges it into the tanlt through the pipes 147, 148.

ln Fig. 7, there is shown diagrammatic view of the electrical connections tor controlling "ie motor, in which the electric-al feed wires are shown at 150, 151. Said wires lead to the contacts on the switch block 23, and trom the lrnite switch 24 lead to the motor by way of the wire 152 and to the tilting switches 116 by the way ot the wire 153. lVires 154, 155 connect the opposite terniinals of the tilting switches with the opposite pole or the motor.

The result of the foregoing construction is that whenever one ot the gas holders goes down, that it will tilt its switch 116 in suc-h a position as to sta-rt the motor; while, when it rises, it will stop the motor as soon as its trip 113 tilts the switch contact, and in a similar way, the switch blades 124 will be disengaged when the gasclene in the tank 122 gets too low.

tllhe operation of the apparatus is as tollows: assuming the gas holder to both be charged with gas and in use, it will be seen that the gas holder 7:2 tree to Vtall and send its gas to the discharge pipes connected with the pipes for distribution. As soon as it Vfalls below the position illustrated in F ig. 3, its stop 115 will contact with its rm 117, and cause the motor to start. As soon as the motor starts, the gas holder will begin to rise drawing air through the receptacle 14 into the gas holder, through the trays 4, 4 and the inwardly opening valve 85. it the same time, measured quantities 01" gasoleneY from the tanl 22 will be delivered by the valve 32 to the tubes 4, 4", there being a fixed gear ratio between the shalt 51 and the shaft 35. it the same time, the pump will be circulating the water in the receptacle 1 around the evaporation pans, and will thereby prevent them from freezing up. At the saine time that the gas holder 72 is rising, the arms 70, 71 will be lowering the cables 107, 108 leaving the gas holder suspended only by its charge of gllslt is, of course, assumed that the gas is being used under the pressure of the gas holder, and when the gas holder T3 has reached the bottom of its movement, the previous operation will be repeated; but in the mean time, the gas holder 79, will have been raised to the limit of its movement, and as soon as its stop 113 contacts with its arm 117, itwill cut on the current to the motor, thereby stopping the motor after a delinite supply ot' the gasolene gas has been produced.

lt will be apparent 'from the foregoing dcscription, that the gas produced by the inacliine may be used as long as there is a supply or gasolene, or other liquid fuel, and that by the time one gas holder is emptied that the supply oi gas contained in the other will begin to be used while the just emptied gas holder will be inspirated and freshly supplied.

lllhile water has been spoken of as the medium for sealing the gas holders, it will bc clear to those skilled in the art that oil, glycerine or any other suitable liquid may be used for tiat purpose at will.

W hat I claim is as follows, but various inodiiications may be made in the construe tion shown in the drawing and above particularly described form, ufithin the pui view ot' my invention.

1. A carbureting machine, comprising a mixing chambe having an air inlet and a carburetted-air discharge outlet, means for introducing determinate quantities of gasolene into said chamber, a pair ot vertically movable carbureted air induction and holding bells, water-sealed at their lower ends, the outlet from said chamber communicating through valved conduits with the interiors of said bells, means for automatically lifting said bells alternately, holding each bell in elevated position until the vacuum created therein is lilled by carbure/ted air induced through the carburetor, and then permittting the filled bell to descend by gravity to thereby expel the contained carbureted air, and a common carbureted-air discharge outlet operatively connected to both said bells.

2. A carbureting machine, comprising a mining chamber having an air inlet and a carburetted-air discharge outlet, means for introducing determinate quantities of gasolene into said chamber, a pair of vertically movable carbureted air induction and holding bells, water-sealed at their lower ends, the outlet from said chamber communicatw ing through valved conduits with the interiors olf said bells, elevating mechanism for lifting said bells alternately and holding each bell in elevated position to permit the vacuum created therein to be illed by carbureted air induced through said carbureter, and controlling means for causing said mechanism to release the elevated bell when the other bell has discharged its contents.

3. A carbureting machine, comprising a mixing chamber having an air inlet and an air discharge outlet, means for introducing determinate quantities oli gasolene into said chamber, a pair oi' vertically movable gas induction and holding bells, water-sealed at theii1 loweiI ends, the outlet fi'oin said chamber' communicating through valved conduits with lthe interiors of sziicl bells, elevating mechanism 'foi' lifting said bells alternately and holding each bell in elevated position to permit the vacuum oi'eatecl therein to be filled by earbui'etecl air induced meesters throughV said eaibureter and ineens controlled by each of said bells when in lowerinost position for causing the descent of the other' oic seid bells.

In testimony whereof l have hereunto set my hand this 12th day of July, A. D. 1919.

- ALFRED E. ROBERTS. 

